[mpiwg-tools] ticket 405: MPI_CHAR as string

[Junchao Zhang]

Yes, I got it that now. Thanks.

--Junchao Zhang


On Mon, Feb 10, 2014 at 3:36 PM, Kathryn Mohror <kathryn at llnl.gov> wrote:

> Hi Junchao,
>
>
> PS: I find  MPI_CHAR variables are a little special.  For  MPI_INT like
> variables, we get their count from *_handle_alloc. When we write them, very
> likely we don't increase its count. But for MPI_CHAR variables, it is not
> the case. When you write them, you probably have a longer string to write!
>
>
> The count returned for MPI_CHAR variables is supposed to be long enough to
> contain the largest valid value of the variable. Does that address what you
> are thinking?
>
> Kathryn
>
>
>
>
> --Junchao Zhang
>
>
> On Sat, Feb 8, 2014 at 9:54 AM, Kathryn Mohror <kathryn at llnl.gov> wrote:
>
>> Hi Junchao,
>>
>> I'm not sure what you mean. MPI_CHAR is in the list of types allowed for
>> variables in section 14.3.5.
>>
>> Kathryn
>>
>> On Feb 8, 2014, at 4:54 AM, Junchao Zhang <jczhang at mcs.anl.gov> wrote:
>>
>> When to use MPI_CHAR? I don't find it in the text.
>> At least, for non-generic pvars, MPI_CHAR is not in the allowed types
>> currently.
>>
>> --Junchao Zhang
>>  Hi all,
>>
>>  As we discussed in our call, I have drafted new text for ticket 405
>> which clarifies our intent for the MPI_CHAR datatype to represent strings
>> in the tools interface. Please take a look at the red text for ticket 405
>> in the attached document and send your comments.
>>
>>  Kathryn
>>
>>
>>    _________________________________________________________________
>> Kathryn Mohror, kathryn at llnl.gov, http://scalability.llnl.gov/
>> Scalability Team @ Lawrence Livermore National Laboratory, Livermore, CA,
>> USA
>>
>>
>>
>>
>>
>>
>>
>>
>>
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>>    _________________________________________________________________
>> Kathryn Mohror, kathryn at llnl.gov, http://scalability.llnl.gov/
>> Scalability Team @ Lawrence Livermore National Laboratory, Livermore, CA,
>> USA
>>
>>
>>
>>
>>
>>
>>
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>
>    _________________________________________________________________
> Kathryn Mohror, kathryn at llnl.gov, http://scalability.llnl.gov/
> Scalability Team @ Lawrence Livermore National Laboratory, Livermore, CA,
> USA
>
>
>
>
>
>
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